Birth Control Options for Women - Spermicidal and Barrier Contraception

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Advantages of the Diaphragm. The diaphragm can be carried in a purse, can be inserted up to an hour before intercourse begins, and usually cannot be felt by either partner. It may protect against cervical gonorrhea, Chlamydia, and trichomoniasis, although more research is needed to confirm this. It does not provide protection against sexually-transmitted infections in areas other than the cervix.

Disadvantages and Complications of the Diaphragm. Some disadvantages or complications are as follows:

• Failure rates are high, about 20% with typical use.
• Some women dislike having to insert the device every time intercourse occurs or have trouble mastering the insertion and removal process.
• Frequent urinary tract infections are a problem for some women. This difficulty can sometimes be resolved by a refitting, by urinating before inserting the device, or by urinating after intercourse.
• Cases of toxic shock syndrome have been reported among diaphragm users, but it is very rare. To be safe, the diaphragm should not stay in place for more than 24 hours. (It is still important for pregnancy protection, however, to retain the diaphragm for 6 - 8 hours after intercourse.)
• It provides protection against sexually transmitted disease only in the cervix, and women should not rely on it for protection against HIV.

Cervical Cap

The cervical cap (Prentif, FemCap) is a thimble-shaped latex cup that fits over the cervix. It is always used with a spermicidal cream or gel. It is similar to a diaphragm, but smaller, and is available in only four sizes. The cap is sold by prescription and requires a pelvic examination, Pap test, and fitting by a health care provider.

Insertion and Use of the Cervical Cap. After a small amount of spermicide is placed in the cap, the device is inserted by hand. As in diaphragm use, instruction and practice is required. The cap must be kept in the vagina for 8 hours after the final act of intercourse. Caps wear out and should be replaced every 1 - 2 years. A refitting may also be needed when a woman experiences certain changes in her health or physical status.